Musnad Ahmad 30:191

Sufyan narrated to us, from Abu al-Zinad, from al-A’raj, from Abu Hurayrah: "A swarm of locusts of gold was sent down upon Ayyub, and he began gathering them into his garment. It was said: 'O Ayyub, has what We have given you not sufficed you?' He said: 'O my Lord, and who can be independent of Your bounty?'"